Last active Mar 1, 2018

Redis KPTI benchmark

Other benchmarks make me sad. People run them in the cloud where VMs can
migrate between different hosts on reboots and use old kernels. Here we use
bare metal with the same recent kernel to remove extra variables
and measure KPTI impact and KPTI impact only.

Setup

Kernel: 4.14.11

CPU: 2 x Xeon E5-2630 v3 @ 2.40GHz (32 logical cores)

Some prerequisites:

Every measurement is taken with a freshly restarted Redis without persistence